The Mystery of Blackthorn Castle By: Syntaxity (Lone Wolf Games) This is the sixth part of my complete walkthrough guide with hints, tips, solutions and answers for the iOS and Android game Blackthorn Castle by Syntaxity. Feel free to ask for help in the comments section. Walkthrough: Part 1 | Part 2 | Part 3 | Part 4 | Part 5 | Part 6 51. Go back to screen 42 and use…